Skip to main content
Log in
Siemens 3RT1023-1AP60 — Contactors

Siemens 3RT1023-1AP60 SIRIUS S0 Power Contactor, 400V 4kW

MPN3RT1023-1AP60

Siemens SIRIUS 3RT1023-1AP60, size S0 power contactor, 4 kW at 400 V AC-3, 45 mm wide, screw-type terminals, snap-on DIN rail mounting.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT1023-1AP60 — Identification
ParameterValue
Contactor frame sizeS0
3RT1023-1AP60 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V8.5 A
Rated value @ 400 V4 kW
Rated value @ 500 V4.5 kW
Rated value @ 690 V5.5 kW
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1023-1AP60 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz220 V
3RT1023-1AP60 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1023-1AP60 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 63 A
Short-circuit coordination type 2, fusefuse gL/gG: 25 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1023-1AP60 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Side-by-side mountingYes
3RT1023-1AP60 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1023-1AP60 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Installation altitude, max.2 000 m
3RT1023-1AP60 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth91 mm

Product details

It's rated for 4 kW at 400 V AC-3 duty, 4.5 kW at 500 V, and 5.5 kW at 690 V, so it handles three-phase motors up to those power levels. Screw-type terminals on the main circuit accept 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), and up to 2x 4 mm² solid, or 2x (1...2.5 mm²), 2x (2.5...6 mm²), and max 2x 10 mm² stranded. AWG equivalents are 2x (16...12), 2x (14...10), and 1x 8.

Size S0 means it's a compact contactor for small to medium motor loads. It can be mounted side-by-side without derating, and the IP20 front protection keeps fingers out during panel access. For short-circuit protection, type 2 coordination requires a 25 A gL/gG fuse; type 1 coordination allows a 63 A gL/gG fuse. The auxiliary contacts (built-in or add-on) are rated for 10 A at 24 V AC, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — enough for PLC inputs or relay coils.

Sourcing decision

If you're filling a BOM line or replacing a failed unit, this part is a direct fit for any panel designed around a SIRIUS S0 contactor. The 45 mm width and screw terminals match the standard footprint.

Frequently asked questions

What are the key electrical ratings for this contactor?

Rated for 4 kW at 400 V AC-3, 4.5 kW at 500 V, 5.5 kW at 690 V. AC-4 rated current is 8.5 A at 400 V. Auxiliary contacts rated 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V.

What mounting does it use?

Snap-on or screw mounting onto 35 mm DIN rail per EN 50022. Width is 45 mm.

Will the 3RT1023-1AP60 drop into a panel wired for the 3RT1023-1AL20?

Both are SIRIUS S0 contactors with the same 45 mm width, screw terminals, and DIN-rail mounting. The main difference is the coil voltage — the -1AP60 uses a different coil than the -1AL20. If the coil voltage matches your control circuit, it's a mechanical and electrical drop-in. Verify coil rating before ordering.

What is the depth of this contactor?

The depth is 91 mm.

What wire sizes does it accept?

Solid: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), max 2x 4 mm². Stranded: 2x (1...2.5 mm²), 2x (2.5...6 mm²), max 2x 10 mm². AWG equivalents: 2x (16...12), 2x (14...10), 1x 8.

MPN
3RT1023-1AP60